Dear customer Thank you very much for choosing our intelligent light control app – eFamilyCloud. The Smart lighting handled with the most sophisticated production and adopted with our years of development experiences. The lighting system has no flash frequency brightness adjustment, 16 million color switching, timer and multiple color and profile option. All the functions above can be controlled by this App in your Smartphone, no matter where you are. Our product will make your life more easier and comfortable. Please know you will need to use android.permission. when you phone number receive a message verification code after register . In order to make the best experience with our product and services, please do read this App manual carefully.